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首页> 外文期刊>Saudi Journal of Biological Sciences >Effects of hematite and ferrihydrite nanoparticles on germination and growth of maize seedlings
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Effects of hematite and ferrihydrite nanoparticles on germination and growth of maize seedlings

机译：赤铁矿和水铁矿纳米颗粒对玉米种子萌发和生长的影响

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Engineered iron oxide nanoparticles (IO-NPs) have been used extensively for environmental remediation. It may cause the release IO-NPs to the environment affecting the functions of ecosystems. Plants are an important component of ecosystems and can be used for the evaluation of overall fate, transport and exposure pathways of IO-NPs in the environment. In this work, the effects of engineered ferrihydrite and hematite NPs on the germination and growth of maize are studied. The germination and growth of maize were done with treatments at different concentrations of hematite and ferrihydrite NPs, namely 1, 2, 4, and 6g/L. Biological indicators of toxicity or stress in maize seedlings were not observed in treatments with engineered hematite and ferrihydrite NPs. In contrast, the NPs treatments increased the growth of maize and the chlorophyll content, except for hematite NPs at 6g/L, where non-significant effects were found. The translocation of engineered ferrihydrite and hematite NPs in maize stems was demonstrated using confocal laser scanning microscopy.
机译：工程氧化铁纳米颗粒（IO-NPs）已广泛用于环境修复。它可能导致释放IO-NP到环境中，从而影响生态系统的功能。植物是生态系统的重要组成部分，可用于评估环境中IO-NP的总体命运，运输和暴露途径。在这项工作中，研究了工程水铁矿和赤铁矿纳米粒对玉米发芽和生长的影响。玉米的发芽和生长是通过不同浓度的赤铁矿和水铁矿NPs（即1、2、4和6g / L）处理的。在工程赤铁矿和水铁矿NP的处理中未观察到玉米幼苗的毒性或胁迫生物学指标。相比之下，NPs处理增加了玉米的生长和叶绿素含量，但赤铁矿NPs在6g / L处没有显着影响。使用共聚焦激光扫描显微镜证明了工程化的水铁矿和赤铁矿NP在玉米茎中的易位。

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